13823566666 has 32 divisors (see below), whose sum is σ = 25544147328. Its totient is φ = 5463581760.

The previous prime is 13823566663. The next prime is 13823566693. The reversal of 13823566666 is 66666532831.

It is not an unprimeable number, because it can be changed into a prime (13823566661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164181 + ... + 233671.

It is an arithmetic number, because the mean of its divisors is an integer number (798254604).

Almost surely, 2^13823566666 is an apocalyptic number.

13823566666 is a deficient number, since it is larger than the sum of its proper divisors (11720580662).

13823566666 is a wasteful number, since it uses less digits than its factorization.

13823566666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70606.

The product of its digits is 5598720, while the sum is 52.

The spelling of 13823566666 in words is "thirteen billion, eight hundred twenty-three million, five hundred sixty-six thousand, six hundred sixty-six".